Street-indicator for electric cars.



J. E. MURTON.. STREET INDICATOR EOE ELECTRIC QAEE.' i

' .APPLICATION FILED IAN. 1a, 1913.

Lm., Eatenwdm 1913.

SHEETS-u-SHEBT 1.

WIINEssEs:

. 4INVENTOR- I/MEMrfQ/L,

f ATTORNEYS J.EQM0RT0N. lSTREET INDICATOR |FOB. ELECTRIC CARS..

APPLICATION FILED JAN. 13, 1913.

-Patnied 0cf.7,1913

-4 SHEETS-Smm' z4 vATTORNEYS J. E. MORTON. STREET INDICATOR IOR ELECTRICCARS.

APPLICATION FILEID JAN.13, 1913.

vvlTNEssEs: f-,INVENTUR 'ATTORNEYS Patented Oct. 7; 1913. 4sHEBTsfsHBm-a.

J.B.MORTON.; STREET INDICATOR IOR ELECTRC4 C'ARS.v l

Patented oct. 7,1913.

4 SHEETS-SHEET 4.

Lmao

PPL'IGATION FILED, JAN. 13, 1913.

:gli

30 electric cars primarily 'comprisi 'onirnn stri-ireneieiirnnr erntenQ""Jiiivrnsfn. Moncton, or" DALLAS, l TEXAS.'

l t STREET-inmunes. non ELECTRIC enne. f

To all idiom 2f 'maiz/Oacom jBe it lnioivn lthat L Janus a citizen ofthe United Stated-residing at Dallas. inthe county Aof Dallas andStatefot Texas, vhave ir eiited certain nei'vV and usefuln'ipi'ovemeiits in Street-Indicators for ElectricCarsfogivhichthe-following is va specification; v

' My invention relates to street indicators for electric' cars, and rit.has for its object to'in'ountwitliin a street cara device tha ivillindicate to thepcrsons in the car the naine of each cross-street as thecar api proaches'tlie same; f

'it is' a further ebject'of the invention to provide a'street'indicating device ferelectrie cars that-'Will be entirelyautomatic in its operation, and Wl1icli,"\vhen once installed willrequire 'ii' attention. either vfrom'the n'iotoiinafi oreoiiduetor.' IY- still urtlierobject is to' providea device of the' characterdescribed't-hat will net perate vvlien lthe car is backing 'up andwliichewill not,l require readjustnient"'when a ycar vivliich ordinarilyruns upon oneline in ifcity'is transferred to some other line,

is frequently donel,4 The obj-ect ot' the invention stated specifi-.cally'is te provide asti'eety indicator for a plu al- 'ityr'lfribbonsharing their extremities consecutively mounted upon drums carried byiaiiupper and a lofiver shaft. 'the lett-ers ot the alphabet beingprinted in their proper succession. upon each ribbon, and a mechan'isnibeing providedby which certain of these ribbons will be subjectedtofacertain amount ot'travel asthe ear approaches any cross street. thelamount of 'travel impressed 40 upon the ribbons beingl sucli as to causethc name oi the street. to appear through airindow provided in theeasing' within which the device is mounted.

y The object or' the invention is iinally toy 'lied providev a deviceetjthe.character d :that ivill be stro g, duiable, simple cient' andcomp: ,tivi-fly Cand also one tliejrariou Will not le likely 'te 5'0order. y

. lit-h these :findv-ai' view myn invention ha novel features of theCtlil E. lilomfou,

Specification ot' Letters Eatent.

' illustrated viii.

l"dran 1 in the following speciicatiomand illustrated in theaccompanying drawings, wherein:

.Figure l is a vieuT in side elevation showingv the, upperportion of :astreet cai equipped with the, herein desci'ibedvstreet indicatingdevice, ,this View also vshowing in .Iside elevation one of-tlie'deyiceswhich are -to .bemounted upon the, trolley u firesome distance from eachstreetv forv the purpose .oi actuatingthe indicator mechanism and`thereby causing the street name to appear in the aforesaid window.vFig. 2 is' a front.

ivieiv of the indicatorcasing showing the Window in saidcasing throughwhich the v.name of a street may be' read as. the. car approaches saidstreet., Fig. V3 is ayiew Patented @en @1913i.Application-inedJanuary13,1913. seriaino. 741,612.

showing' the device in front elevation Xvitlim i Chfront-Wall of thecasing` removed. Fig.

4s is a transverse sectional View taken upoii the line X-fX of Fig. 3.-Fig.. 5 is. a,.de tail section-al view' showing one of thev drumsadapted to carry the lower end portion of a correlatedribbonfcarryingtliefletters oi' thea-lphabet. Fig.. G `is anend viewot one of thedevices which are to be mounted upoiif the trolley Wireseme distance.from ea'cli` street, said devicel being the primary actuating -nieansbyfWliicli the., mechanism within the street car-is caused to, spellthename ofthe street adjacentto which said device is mounted AFig?? is asectional view of the .saine ldevice, ythe section being 'takenupoiifthe line Yeif of Fig. G; Fig 8 is a View showing in rear elevation.adevice mountediipo-n the .upper portion of a v*trolley pole. thepri-mary members ot'ysaid device being` afplurality et toothed wheels,

wvliiclrai'e adapted to respectively engage a i'ilurality et rac carriedhy the devices f `.G and 7. Fig.'y Qis a 'vieu' fallen-ing` thesamed-eviee'in sectional elevation. tlies ction'theing,tal-ren upon theg .8.' Fig. l0 isa longitual "sectional view of'a dash potA embodied therievice lillustrated .in 'FigsS and 9. i l il is a detail iront view.ot' a, valve pi' :vi':led for the dashpotplunger. Fig. l2 elbovv ot'yp-- le. through which pipe certain Wires are carriedupo'nxsmallrollers.VL Fig, 1S isan din im i

' end view nof said elbow. f

e'iie'rriiig non' more particularly `-to the v at the' centerV of itstop wall, which wall will elongated ribbons 11, the upper and lowerextremities of each ribbon being respectively v' alphabet arranged intheir proper succes- V ried by one of the drums 9 and being ended.

numeral 1 denotes a street car which is pro- V the trolley wire,'anotherupon the upper portion of the trolley pole, and the third the front wallthereof. The member. last specified will be first described. The mechacasing 5, provided in its front wall with videdwith the usual trolleypole 2 inclined upwardly and rearwardly, and provided at its free endwith the trolley wheel 3 engaging the trolley wire 1 1.

'lhe invention comprisesthree' primary members one of which is to bemounted upon to' be mounted within the streetcar upon anism of thismember is contained within a horizontally elongated window 5*. Thecasing 5 is provided with a circular aperture preferably be inclinedupwardly toward said aperture at each side thereof. Within the casing,there are mounted two vertically spaced horizontal shafts, the upper ofwhich is designated by" the numeral 6 and the lower by the numeral 7.The extremities of saidshafts are rigidly mounted in bracket members S-carried bythe side walls ofthe casing. The upper shaft 6 carries aplurality of rotatably mounted drums 9, andi an equal number ofrotatably mounted drumsi 10 are carried by the lower shaft '7. The drums9 are paired with the drums 10 to carry the end portions of apluralityof secured tothe correlated drums 9 and 10. Each ribbon 11y carries theletters of the sion, this succession being made ,to commence atthatfextremity ofthe ribbon carupon that extremity of the ribbon carriedby one .ofthe drums 10. It is thus apparent that when 'anyfribbyon issubjectedto travel in an upward direction, the letters of the alphabetcarried by said ribbon appear sucother en rigidly secured tothe drum.The

10, leaving the correlated drum 9 substancoiled springs 13 impress uponthe drums 10 a rotative impulse, tendlng to wind the 'ribbons A11 upon.the correlated drums 10. When the maximum4 amount of any ribbon'v hasbeen woundjupon the correlated drum tially empty, .such'a ribbonwilliappear as'i is shown vat ythe vright and left vhand sides in Fig. 3,an unprinted s ace upon the upper end portions .of the rib appear'Iopposite the window 5. The torsion of thesprings -13 may besufliciently overcome .to permit any ofthe letters cari.

ons being made to jv ried by the ribbons toappear-before the window 5a.The drums `9 `are. .held in' .ai

proper spacedirelation by'- a plurality of collars 14 loosely carried bythe shaft 6,'and A a plurality of collars l5 similarly serve to hold thedrums 10 in a proper spaced' relation. lEach'of the drums 9 carriesintegrally a supplementary drumfl6, thedrumsv 16 being vlSomewhatsmaller diameter than vthe drums 9, and being of a .considerably smallerwidth. To the face of each supplementary drum 16. there is secured theextremities of a wire 1-7, eachof the wires 17 being extendedupwardlyand over a pulley 18, which ,pulleys are mounted looseupon aplurality of pins 19a forwardly projecting from a horizontal ybar 19having its extremities'respectively mounted upon the end walls of thecasing 5.- "When one of the wires 17 is being unwound from thecorrelated dru'm 16', a ribbon 11 will be winding upon the. drum 9 withwhich said drum 16 is mum portion of any ribbon 11 is wound upon a drum10,'the drum 16 which is correlated with the drum 9 carrying the'othercorrelated, and -vice versa.' `When amaxiextremity of said ribbon willhave coiledr- A upon it a suilicient amount of the wire 17 to cause amaximum portion of said ribbon to wind upon the correlated drum 9-whilethe coils of wire 17 are being unwound from' the drum 16. v

It is obvious v from the foregoing descripf tion that by drawing off acertain amount of wire 17 from one of the drums 16, any letter carriedlby the correlated ribbon 1 1 may be made to appear before the window 5,and

by thus making the proper letters appear upon a plurality of the ribbons11, any street name can be made to appearin the window 5a..' The wires-1 7 after' passing over the small ,pulleys 18 are extended at anupward-- inclination= toward .the central aperture in" the top .of thecasing 5.- ithin said aper- "ture are mounted, axplurality of parallelhorizontal spindles'20, each carryinga plurality of small looselymounted pulleys 21. The wires 17 after each-passing over one of thepulleys. 21' are extended upwardly through the central aperture-in thetp'of the casing.v In the accompanying drawings,

the-wires'. 17 are twelve in numbeiyand three of thecorrespondingpulleys 21 aremounted upon each of the spmdles whiclrarefour in number.. A-short space above lthe aspindles 2 0 there aremounted an equal number of spindles 22 horizontal in position andtransverse-in direction with the -spindlesy 20. Upon .each lspindle 22there are mounted three small. pulleys 23 which serve t-o guide thewires17.as 'they' -extend in an upward I direction.

Afp-ipe 24 communicates at its-lower end4 with `the central apertureinthe top of the .casing 5 and at its upper 4end said pipe ipvzsgoss ipasses through the root of the carl.-l The upper end oi." the -pipe-24-communicates throughan elbow25 with a horizontal pipe 26longitudinally 'mounted upon the'roof of thefcar and extending to thetoot of the `.t'r'oll ey 'pole The pipe .26 .communicates fri at; its-rearendlwith a pipe 27 secured to the trolley pole bv a plurality ofbrackets 28 :o yand' terminating in an 'Open end some distance fromt'hetopot the trolley pole. The

wires"17 are' made to pass 'through the ffpipes2el5 25, 26 and 27,being-l supported wherever'. necessary in saidpipes by-sets' of'pulley-s 21 and l23 'such as have been'already described." .1` Inorder'to "more clearly illus-- trate the manner of supporting the wires171withinv said pipes, the detail views (Fig.

12 and Fig. 13) showing the wires passing accompany-ing drawings.

through the elbow 25 are furnished in the A description will .now

" vice 'whichl is to be mounted upon the upper extremity yofl thetrolleylpole 2, said device.

forming one of the three primary members vwhich constitute theinvention. An elon- `gate'dfplate 29 is' mounted centrallyV andtransversely above. the 'upper eXtlemt-Y 0f the trolley pole,

the central portion of said plate 'lyingdirectly above vthe trolley poley so being horizontal, and the two lateral por.-

` tions being inclined downwardly at thel same gradual inclination. The.plate 29 is held in a rigid relation'to the trolley pole by a pair ofbracket` members 30 having the nature of bars each'bolted or 'otherwisesecured at its vouter fend. beneath one of the inclined sidel yportionsof the plate 29 and the two havving*y their inner end portionsclampingthe trolley pole; between them. The extremities "dicated atofthe plate 29. are vturned upwardly as in- 30a in Fig, 8 `of theydrawings.v

Upon each of the inclined portionsof the f 'number ofl wires \7.

`may be 'employed 'to 'secure the brackets 31 bottom portions of the l4'era-bly beigiven the same -mchnationasis provided to the lat-eralportions of the vplate "29, as isy clearly' shown in, Fig.v 8 of the ldrawings.`

Aof-which will` now 'be described in detail.

i .thenumemissa--sea scendere.

-' 32- and 32a yhave substantially the same d1d a r'on somewhat someter.greater Nithin-.each U shaped bracket 31` there is mounted a toothedwheel,"th`e vconstruction Each of Said wheels lis primarily formed offive"r1r1'et'2xll disks respectively designated by The disks The disk33a has a' diameter andthe two disks 33 lhave considerably ygreaterdiameter than the v` disks "32 andj32a. `765%.f

These ydis is are concentric'al'ly riveted for-bolted togetherV asi m-Ibe given of va de-v v39 having its extremities aimed aber, thedisk sebeing ciampedjbe- 4tween the' members v33, and the disk 32?, which willpreferably have a. somewhat lesser width than the disk 32,' being'clamped between one 'of lthe' members 3 3 and the member 33t-.

drawir'igs',v it will be seen kthat an annular chamber is portions ofthedisks 33of each wheel;- In' 'thischamber there are pivotally mounted alplurality otequidistantly spaced triangular teeth 35,v the pivotpins 36supportingsa'id teeth having their extremities mounted in the disks'33.'In the position normally oc' From the above description and` fron-1 Vthe formed between .the peripheral cupied by the teeth 35', one edge.ofeach toothwill be substantially radial inf'position, the pivotalpoint of the tooth being located at the apex formed byv .the'juncture ofthe other two edges.' When the teetlgs 35 are in their normal position.just :described, a considerablespace intervenes 'be'.

" tween each tooth and 4the circular'- ace of the disk 32. Each tooth isprevented undell-j' normal conditions from swinging about its soipivotal support by securing one. extremity 5 leaf spring 39 to the toothadjacent to said pivotal support and :causing the other end. of saidspring to bearfupon the face of the disk 32. A lug 37 -projects from thejunctureof the two edges of each toot-h which form a 'rightangle and;thisy lug throughl engagement with a pin 38 having itsextremitiesmounted in the disks 33 i.

the correlated. tooth respectively, .prevents about lits pivotal fromswinging outwardly support.. It wlllthus be plainly seen that the teethare adapted to resist any force acting perpendicularly against vtheirradial faces, but if'a tangent-ially acting-forcev ,is

applied to the inclined edge-vof any-tooth,

said tooth may swing about its pivotal sup--l port' .until the lugl3Tcontacts with the face of the disk 327 provided that the tangen tialtorce is sufficient lto overcome the tension of the-springy 39. Each ofthe wheels Y just' described correlated U shaped bracket 31..

-It has been already statedl thatjhe'wires 17 each-have one extremitysecured to! the tace of one of' they drums 16, andy ity has t-hev`wheels just been also explained that desc'ribed. are equal in' number,to the 4wires 17. The other extremities of the wires 17 are respectivelysecured to the rims of the is mounted fast upon a pintles'.

journaled in the disks 32, which disksy form drums uponr` y wliichgthewiresmay bewound.A Thewires. Y A

are secured to that a .-force acting `tangentially against the radial`faces of the teeth 35 will vtend to` the-disks 32?x in such .a mannerwind said wires upon said disks. 323.l The leys 40- rotatablyrmounted-upon pinsffl.

wires 17 extendvertically downward` Yfrom th'e disks 32jn and are passedoversmall pul-` leo , angles in a .rearward'direction-and bolted orotherwise'secure bars' being provided with feet which are clined.upwardly securdto the upturned members 30. From A vnumber of correlatedwire 17 will cause the correletters carried by said] ribbon, causing anyvletter to b letter.

45 polel encounters one 'devlces to be mounte upon the trolleywlre,

. some restraining means is] provided', the 55 the wheels carryingthe,teeth 35 againstga" -bar 42, two bars 44 in Fig.' 8. Upon .the lowerextremitie'sof are mounted which serv Iare extended into the open upperend of thepipe 2.l The means for supporting said vwill -be subjected to,"such a rotationas will to wind the' ribbo'nsll upon the druni's'.10 assoon as the device carried by the trolley projecting perpendicularlyfrom aihorzontal bar 42 whlch has its ends bentat right d to theupturnedends From the center 'of the'- are extended divergently er extremities'of the said l of t'llebar 29.

downward, the low secured to a horizontalcentral portion of a bar 45which has its lateral portions in- 4 and bolted o r-,otherwise port theextremities of wires during their passag'. through the pipe 27 and otherpipes conne. ted' therewith-has already been'described. LIt is to belinderstood that.. whenA anywheiel mounted .in the .bracketsl issubjected o a puflieientl angular displacement to prodpce a rotationequal to the distance betweenitwo teeth, theresulting displacementcdinmunicated to the lated ribbon 11'to undergo a displacement' equaltothe distance between two ofthe e .replaced b y the 1 iext successiveIt must at this point be understood that when the device surmounteduponv atrolley et the plurality of the certainofthe wheels carrying 'thete'eth'35 cause to appear in the window- 5*1 the name of the street next:adjacent to the device upon theftrolley. wire which was encounteredby'the device upon /the trolley pole. 'Unless action lofthe coiledsprings '13 would tend pole .is,.released from'the device carried bythetrolley wired' In order that the name of the street may continue toappear before the'window 5'L -until the carhas passed ysaid street, itis necessary to temporarily hold reverse rotation after' they vhave beens ubjected to angular dis1 lacement.-`A The means lprovided'fr this thebar 42.

yare sur-mounted upon the plate 29. "Be

head1 59'a1 is provided bar having its two extremities pivote'd uponcenter portions 53, the steps of which are purpose comprises a metal'the rearwardly projecting extremities 5 1 of Said bar comprises twovertical .slde portions 52 and two similar stepped adapted to engageabove the radial edges. Y

o f the teeth 35. The stepped portionoi the dog or pawl `formed by thebar comprising the members 52 -and 53 is normally held in engagementwith the teeth of the wheels 35 by a coiled spring 54, having one of its.ex-

tremities secured toa bar 59, projecting forwardly from beneath thecenter of the member 53v and bent downwardly adjacent to its The otherextremityof the spring 54 is secured Vto a bar 55 transversely extendingbe- ['80 pomt of connection with sa1d member1". 53.

tween-the two uppermost brackets 31 which tween the said two uppermost Ubrackets 31, there is mounted a dash which rests upon the horizontalCenter portionof the plate 29, the axis of, sai pot being parallel withthe'tr'olley wire. The plunger 57A of the dash pot projects through therear wall thereof and is connected by a pitman 58 with' the'lowerextremity ofthe bar 59. It is thus apparent that when the bar comprisingthe members shaped and 53 is displaced tothe position shown 1n dashlines in Fig. 9, 1n which position said bar is disengaged'l from the.teeth .'35,

placed from the'` forward to the rear `ex tremity of the cylinder 56.The plunger with a number or ap'-l ertures 59d which are closed.' byspring ward f ace'of said'plunger head, as clearly shown in F-i g1 1.-When theplunger head is displaced from the orwa .of the cylinder v 56,the

pot 5.6 'I

d dash vthe plunger 59:il of the dash pot will be dis-h pressed valves59 mounted upon the or- 1 05 rd to .the rear end' valves 59 willautomatically open to permit'the air in the rear portion of the cylinderto pass to thE front portion thereof.- Owing to the action of the coiledspring 54, the plunger will `4 gradually return to its normal positionto the front end oitv thecylindcr `(shown in Fig. 10), the air beingpermitted toV escape' through the plunger by way' of a plurality of verysmall 4'apertures 59? transversely passing through the plunger. Theseapartures are so small that the 'air pressure in l front of the plunger591 willv for 'some time resist the action -of the spring 54 so that theplunger will move forwardly very slowly. A description will .now be.Agiven. vofthe means provided for releasing the teeth 35 from the pawl52, 53- after 4a street car has passed a street', the name of'which isbeing" displayed' through the window 5., Upon the center of the member53 between the stepped side portions thereof, there mounted a verticaltrip bar 60 the saine be- 55 the plate 64 steady in its proper relationto which is ,secured to the member 53.

ing provided at its lower end with a foot At the `point in the path Iofthe car where vit is delines in Fig. 9;

siredl toxrelease theA wheels carrying the teeth 35, a ,tripping bracket61 is secured `l to the'neck of `one of the insulating membersl 62,commonly employed to attach .the brace wires 63 to thetrolley wire. Therelation l Y .of themembers 60 and '61- to each other is such that theupperextremity of the former member will contact with the latter member'upon reaching thev same.

As a result, the

dog formed by the members 52 and 53 will "be disengaged from. the teeth35 and will be thrown into the. position illustrated 'in dash y Inundergoing this displacement, the dog 52, 53l will communicateadisplacement through the members 57, 58 and 59 to the plunger 59a ofthe dash pot '56,' displacing said plunger from the forwardV to the rear'end of the dash pot cylinder. The fluid preferably air contained withinthe dash pot will gradually pass'through the, small apertures 59b thuspermitting the plunger 59'a to return tof its normal rearmost positiondue to the action of the springv 54. However, before the ldog 52 53again engages the teeth 35, the wheels carrying `"said teeth will-havebeen rotated to their l gaged by y which carry normal position-due tothe torsion of the springs 13 acting through the wires 17. Assoon,.therefore,'as the member 61 is enthe tripping bar 60, the ribbonsthe letters forming the name of a` street displayed through thewindowtia will be simultaneously subjected to a downward displacementand a blank portion of i .i each ribbon willappear before said window.

A description will now be' Igiven of the 4third primarymemberlcom-prising the street car indicator, this member being mounted.

Iupon the trolley wire, as indicated in Figs.' An elongated.

6 and 7 ofthe drawings.

. metal plate 64 is mounted lengthwise upon lthe trolleywire, the middleportion of said plate being secured. to the wire by suitable fasteningdevices indicated b v the numeral i 68. At each side. of the horizontalcentral -K in form.

portion of theplateto Iwhich portion said trolley wire is secured. aplurality of successive steps are formed in the plata-the two 'lateralsteppedportions being symmetrical The total number of 4steps prol' videda the plate 64. win be @quai to the tlie plate' 64 total number ofwires'l?. In order to hold the trolley, there may be centrallysurmounted upon said plate a bracket member to which bracket member maybe secured the brace wires 63 which extend to the trolley7 pole. As astillfurther means to hold in its proper position, a pair of 'bracewires 616 vmay be kextended from the lat-eral edges ofthe plate 64 `toeach wire :63 asis clearly shownin- 6 ofthe draw-I -ing 5.

ings. To the under: face of the plate 64,

there 'are secured a number of racks of teeth,'said racks beingdesignated by the numeral 67 and being ea'chu formed of a bar of metal,so' bent as to give the proper form to the teeth. Each tooth will haveone vertical and one inclined face and the teetli vof everv rack willbeso spaced and proportioned'lthat the wheels carrying the teeth 65 mayroll upon saidrack, the 'racks'serving to communicate a constant rotatin to' 'the wheels during engagement. It is o be understood lthat thenumber of racksj 67 whlch will be mounted upon any plate 64 will beequal in number to the number of letters in the name of| the streetdesired to be ,shownl before the window ain the ,cas-v Also the numberof teeth in 'eachI rack will be just suiiicient to bring the' desiredletters before the window 5a.

Referringto the drawings, it will'be seen that the name displayedthrough the window 5a is Clyde St. Since this name is formed by sevenletters, there are shown seven racks of teeth mounted upon the" plate64. Re-

'alphabet namely L and Y. Theuppermost rack shown in Fig. 7 comprisesfour teeth and will therefore produce the letter D before the window 5a.Itis thud seen how the consecutive letters CLYD are brought be-.

ferring to Fig. 7 of. the drawings, 1t w1ll be fore the window and itwill be readily understood how the remaining letters E and ST will bemade to appear. i

It is to be understood that the devices comprising the stepped plates 64and teeth 67' are to be mounted 'at the approach to every streetl atwhich the car makes a stop. Thus as the ,car-approaches each crossstreet the name of such street will appear in 'the window 5a. Foreverydevice comprising parts 64 and 67 that'is mounted upon the trolleywire,-th`ere will also be mounted upon the trolley wire one of thetripping. brackets 61, these brackets being mounted just beyond thestreets, the names of which are made to appear in the window 5a.

Thedndicator above described and illusp trated in the, accompanyingdrawingsl is adapted to display a street name containing as manyastwelve letters. It will of course be understood however that asufficient number of the ribbons 11,' wires 17 and wheels carrying theteeth sniayzbe'employed to l claims.

Wham @12am-isf A l y '1. In a 'streit indicator for electric cars, thecombinati n with` a 'casing mounted v within-a car and provided with a`window,

'of a ribbon contained in said'casing' and vadapte'dfto travellongitudinally before the window, va'plurality of letters being equi--distantly carried by the ribbon, each of l which letters is singlyvisible through the.y

Window in. a certain positionof the ribbon, a'

ivlieel rotatablyy mounted upon the upper extreniity'of the trolley poleof the car; adey vice mounted upon the trolley Wire, ente-ring intoengagement with said Wheel as the car passes beneath said device, andsubJecting .the ivlieel t 'a certain amount of rotation` ameansestablisli'ing a relation between said Wheel and'said' ribbon suchthat the said rotationyof ythe wheel .actuates .the ribbon 'througl'il'a 1certain amount Aof travel, and

causes jcertainletter. to appear before the Window, spring opposing the'travel of the ribbonactuated by said Wheel,fand tendingl tonormallymaintain the ribbon in a position such" as 4vto expose a blank-portionjof .its surface through lsaid Window, a, dog nor'- mallyvengagii'ig the Wheelserving'to temporarily hold the Wheel in adisplaced position, a tripping arm carried by said' dog, and meansmountedupon the trolley Wire for enga ging said tripping arm andtemporarily.

releasing the dog from engagement with the 4o l l 1 v 2.V In a-street'indicatorfor' electric cars,y

the combination-ivith a' casing mounted Within a ca r and provided'ivitha Window, of a ribbon contained in said casing and Vadapted to travellongitudinally before the' Winldoiv, a "plurality of letters beingequidistantly carried by the ribbon, each of which letters. is singlyvisible through 'the window in a certain position of the ribbon,atoothed Wheel rotatably mo'unted upon the upper extremity offtlietrolley pole of the car, a lrack 'of teeth ymounted upon the trolleywire and adapted to be engaged by the teeth of said Wheel as the carpasses beneath said r'a'clt, thereby'subjecting -said wheel to`a certainamount of rotation, means of establishing 'ai relation between 'saidwheel andsaid rib-y bon such that the said rotation ofthe wheel actuatesthe ribbon through a certain amount of travel, and causes a certainletterto ap# pear before the window, a spring opposing 'the travel of'the ribbon actuated .by said Wivlieel, and tending to normally maintainthe. ribbon in a kposition-such as' tok exposel 85 a .blankportipn oflits surface throughsaid bons 1n a position such as to'expose a blankwindow, a dog normallylengaging Asaid 'wheel serving totemporarily'liold the wheel in a' displaced position, a tripping rincarried bysaid dog, and mea-ns' moun ed upon.

the trolley Wire for engaging saidftrip ing arm and temporarilyreleasing the dog; rom'4 engagement. With the Wheel.

3. In a street indicator for electric cars,

the combination with a. casing mounted within a car and provided with aWindow,

of 'a ribbon contained in said casing andadapted to'travel'longitudinallybefore the l i window, a' plurality Vof lettersbeing equidistantly carried .bythe ribbon, each of which letters issingly visible through the Windoiv in a certain position of the ribbon,

a pair of drums upon 'which the. ribbons end portions are respectivelycarried, a. spring acting upon one of said drums, impressing upon it atendency to wind up the ribbon. a supplementary drum. correlated'- withthe other drum first mentioned, a wheel rota-4 tably mounted upon theupper extremity of,

the trolley-pole of the car, a'. supplementary .drum rigidly carried bysaid-Wheel, asi'vire .having one extremity securedgt'o-the l last namedsupplementary drum andthe other extremity to the first namedsupplementary drum Within said casing, a'device mounted. uponthe-trolley Wire, entering into engage-4 ment with saidjivheel as the.car passes be- .neath said device, and'subjecting the' Wheel to acertain amount of rotation, a ydog norporarily hold the Wheel in adisplaced `posisaid dog, and .means mounted uponfthef trolley Wire forengaging said tripping-arm" mally engaging ,they Wheel serving totemtion of rotatiom a 'tripping arm carried byl and temporarilyreleasing the dog from en- .A

`,i'gageinent with thel Wheel.

4. In a street i dicator for electric cars,

the combination with a casing mounted lWith-4 in a carand provided Witha. Windomof a' plurality ofJ ribbons contained in said cas'l ing andadapted to travel longitudinally be- ,fore the Window, a plurality ofletters being equidistant-ly carried by' each ribbon, the let- .7"

ters carried by any ribbon being singlyvisible through the `Window in acertain position of said. ribbon, a' plurality of wvheelsrota-' tablymounted upon the upper extremityol the trolley pole of the car, a devicemounted upon the trolley Wire, enteringyintoA engagement with certain ofsaid 'Wheels the car passes beneath said device,-and subjectingthewheelto various amounts of rotation,-

means establishing Ia relationbetween each ribbon through a certain-amount of travel;

and causes a' certain letter to appear before lWheel and one of saidribbons, such that the the' window', springs opposing the travel of i Ithe ribbons actuated by said wheels, and

tending to normally maintain all ofthe rib.

5. in a street indicator for 'elect ric ears,.

the combination with a casing mounted -With- 1u a car and prm-idcd witha window, of a i'vlxrality' of ribbons mounted `within ySaid easing andadapted to travel longitudinally 'lant'ore said l'window a l'uralitv yofletters' being cquidistantlv carried bx? eac-h ribbon, and each of theletters# carried by any ribbon,

being' singly risible-through the Window' ina i certain 'position ot'said ribbolna-.pluralit \7 ot' toothed l\\'heel$: rotatably mounteduponthe upper' extremit)7 of thc trolley pole of the car, a plurality oitoothed racks mounted upon the trolley wire and adapted to he engaged,by eentain ot Said .\\'heel. as the. ear lmssesbeneaththel said-deviceand 'therev by subject. lanch wheels to'a' certain amount vot'lrotation` .nleans' esablishing a relation between ach wheel and one ofSaid r|bhon-` Iuch that the .said rotatnnrot the wheel l actuatcs thecorrelated vribbonthrough a ocrtain ainonnt'of travel causing a certainlettor to appearbefore thc vt'n'nloiv. a spring opposingr the .travel ofeach ribbon produced by said rotation of the corrclated wheel. andtending to normallyv maintain the correlated lribbon 1nl a posit-ionsuch as vto expose a' .,.blanliportion of its surface toy the window,

'a dogpnormally engaging the teeth of the Wheels serving totemporarilyhold the wheel*q in a displaced poSition to which they4 'arebrtnight through engagement with Said racks ,of teeth, a trippingarnicarried by th'c sa id dog, ineanS mounted upon the' 'trolley 4Wire\for engaging. said tripping arm and temporarily releasing the dog fromengageinent witlnthe toothed 'wheelS, and means for `from ilainoperative to its operative: position a fte an)-v displaclnent from theWheels. In te tinion whereof I have "signed lny naine to thislSpecification in the presence .of two'snbscribing'n'itnesees,

JAMES E. MORTUN.

iitnesesz T. S.- Minimi D. B. Calin.'

` producing-a gradual displacement of the dog

